In verifyReplacingVersionCode of InstallPackageHelper.java, there is a possible way to downgrade system apps below system image version due to a logic error in the code. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-256202273
| Software | From | Fixed in |
|---|---|---|
| google / android | 11.0 | 11.0.x |
| google / android | 12.0 | 12.0.x |
| google / android | 12.1 | 12.1.x |
| google / android | 13.0 | 13.0.x |